[s-cars] Cold weather and lousy fuel mileage
calvinlc at earthlink.net
calvinlc at earthlink.net
Sat Mar 10 02:01:21 EST 2007
I agree with Jerry. I bought my S4 when it had 80k, now it has 165k. The
fuel mileage was usually around 24-25 mpg when I first got it. Now it
hovers around 20 in the winter and 21-22 in the summer. Of course I think
the O2 sensor is the original and I probably need to get the injectors
cleaned, but there is no way you should be getting 12-16! Is this per the
trip computer or actual calculations?
--Calvin
-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Jerry Scott
Sent: Friday, March 09, 2007 1:42 PM
To: Mark Rivera; s-car-list
Subject: Re: [s-cars] Cold weather and lousy fuel mileage
You definitely have a problem somewhere. My 93 consistently get 21 to 22
in any weather for town driving.
Jerry
Mark Rivera wrote:
>Sorry I can't help, but you're in much better shape than I. My bone-stock
>102K mile 93' S4 got 12.75mpg last fillup, all in-town driving, and I don't
>exactly drive to get good mileage. Still, I would expect much better.
>
>I think 16mpg is the best I've ever gotten in my 4 months of ownership.
>
>Mark
>
>-----Original Message-----
>From: s-car-list-bounces at audifans.com
>[mailto:s-car-list-bounces at audifans.com]On Behalf Of Stott Hare
>Sent: Friday, March 09, 2007 1:13 PM
>To: s-car-list at audifans.com
>Subject: [s-cars] Cold weather and lousy fuel mileage
>
>
>Weather here in the Northeast has had the temps hovering around 0*F, and my
>fuel mileage has gone straight to the toilet.
>
>Nice weather (40*F>) and 95% highway I can pull 21mpg and around 400 per
>tank. Cold weather and 85% highway and I watch my mileage plummet to 16mpg
>and maybe 250-300 miles a tank. Watching the TDS1 when the outside air
temp
>is an indicated 0 - 15*F shows an intake air temp ~20-25* warmer.
>
>Patient is a 95 S6A with 252k on the clock. Still stock. Receives routine
>maintenance. She plugs, oxy sensor and fuel filter were done around 204k
so
>they could be considered due, but I would expect that to cause decreases
>across the board, not temp specific. Coolant temp is rock solid at the
>first fat bar (~10 o'clock). Multi-function temp sender was done at 204k.
>The HVAC temp sensor in the coolant line between block and heater core
>replaced about 230k. No CEL or codes.
>
>My prior experience with the CIS cars didn't yield such temp sensitive
>performance, if you had the car tuned right and all sensors working. Is
>this something particular to the Motronic / hot-wire MAF systems? Is the
>incoming air so cold that the hot wire isn't? I don't have my mixture
gauge
>in at the moment, but I suppose I will hook it up this weekend and watch
>mixture over the next week. When I had it hooked up in normal temps
>previously (within 5k), mixture behaved as expected at idle and cruise, on
>throttle and off.
>
>This just the way things are? or is this an indication of a (temp) sender
or
>something that is begging for replacement.
>
>Thanks!
> -Stott
>_______________________________________________
>S-CAR-List mailing list
>S-CAR-List at audifans.com
>http://www.audifans.com/mailman/listinfo/s-car-list
>
>_______________________________________________
>S-CAR-List mailing list
>S-CAR-List at audifans.com
>http://www.audifans.com/mailman/listinfo/s-car-list
>
>
>
>
>
_______________________________________________
S-CAR-List mailing list
S-CAR-List at audifans.com
http://www.audifans.com/mailman/listinfo/s-car-list
More information about the S-CAR-List
mailing list